Deposition and Characterization of CdS Nano Thin Film with Complexing Agent Triethanolamine

Manikandan, K.; Dilip, C. Surendra; Prabaharan, M.; Prince, J. Joseph

doi:10.3844/ajeassp.2015.318.327

Cited by 30 publications

(12 citation statements)

References 27 publications

(28 reference statements)

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“…4 The XRD spectra of CdS thin films spin coated at 2000 rpm using CdS solution of with and without surfactant with thiol-amine co-solvents and annealed at 300 °C for 5 min Fig. 5 The Raman spectra of a CdS thin films synthesized from CdS solution with and without surfactant annealed at 300 °C for 5 min and b The change of Raman peak intensity with peak position Due to C-S vibrational mode, another peak assigned at 1383 cm −1 and C-N symmetry stretching indicated by the bands at 1120 cm −1 and C-O stretching vibration at 1001 cm −1 were observed, respectively and the result are in good agreement with earlier-reported works [63][64][65]. Another peak detected around 670 cm −1 is due to the Cd-S vibrational mode which agrees well with reported value of [66].…”

Section: Xrd Study Of Cds Thin Filmssupporting

confidence: 88%

Effect of Triton X-100 surfactant on thiol-amine cosolvents assisted facile synthesized CdS thin films on glass substrate by spin coating method

et al. 2020

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In this article, the effect of Triton X-100 surfactant on the spin coated and vacuum annealed CdS thin films on glass substrates using thiol-amine cosolvents have been explored in details. The SEM study reveals that the surfactant assisted CdS films are uniform, homogeneous and smooth having less cracks, voids, pinholes compared to CdS films synthesized without surfactant. The X-ray diffraction spectra indicate the hexagonal structure of the surfactant-added films with (002) and (100) planes having relatively high intensity whereas a weak hexagonal (002) peak appears for the films deposited without surfactant. Two prominent Raman peaks of CdS thin films are observed at the wavenumber 207 and 212 cm −1 due to the multi-phonon vibration of hexagonal CdS. A relatively strong and broad FTIR peaks at 1647 and 670 cm −1 were observed due to the Cd-S bending and stretching vibration in the surfactant mediated films. Surfactant induced CdS films are nearly stoichiometric as manifested by the energy dispersive X-ray report. Finally, higher optical transmission and band gap have been achieved for the CdS thin films deposited with Triton X-100 surfactant. This study reveals that surfactant mediated CdS thin films with thiol-amine cosolvents can be exploited effectively in higher efficiency thin film solar cell technologies with low cost.* Jaker Hossain, jak_apee@ru.ac.bd; * Abu Bakar Md. Ismail, ismail@ru.ac.bd |

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Section: Xrd Study Of Cds Thin Filmssupporting

confidence: 88%

Effect of Triton X-100 surfactant on thiol-amine cosolvents assisted facile synthesized CdS thin films on glass substrate by spin coating method

et al. 2020

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“…According to the Scherrer equation and assuming homogeneous tension, these peaks are consistent with the characteristic pattern of nanoparticles or small crystallites (Figure 3) [38]. In the case of CdS-NPs, a single diffraction plane at (200), corresponding to the Hawleyite mineral phase as derived from the CPDS pattern, was observed (Figure 3, CdS) [39]. NPs produced in the presence of 200 µM AgNO 3 (Figure 3, Ag 2 S) shows a single diffraction peak in the crystallographic plane (111), corresponding to the CPDS pattern of the Argentite cubic phase, Ag 2 S [40].…”

Section: Characterization Of Biosynthesized Ternary Qdssupporting

confidence: 73%

Bacterial Synthesis of Ternary CdSAg Quantum Dots through Cation Exchange: Tuning the Composition and Properties of Biological Nanoparticles for Bioimaging and Photovoltaic Applications

Órdenes-Aenishanslins

Anziani‐Ostuni

Monrás

et al. 2020

Microorganisms

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In this study, we introduce a biological method for the production of ternary Quantum Dots (QDs): complex nanostructures with tunable optical and structural properties that utilizes post-synthesis modifications through cation exchange. This versatile in-situ cation exchange method being reported for the first time shows great potential for extending the scope of microbial synthesis. By using this bacterial-based method, we easily synthesize and purify CdS, CdSAg, and Ag2S nanocrystals of a size below 15 nm and with variable morphologies that exhibit fluorescence emissions covering a broad spectral range (from 400 to 800 nm). Energy-dispersive X-ray spectroscopy (EDS) results indicate the partial replacement of Cd2+ by Ag+ when AgNO3 concentration is increased. This replacement produces CdSAg ternary QDs hetero-structures with high stability, fluorescence in the NIR-I (700 - 800 nm), and 36.13% quantum yield. Furthermore, this reaction can be extended for the production of soluble Ag2S nanoparticles (NPs) without any traces of Cd. QDs biosynthesized through this cation exchange process display very low toxicity when tested in bacterial or human cell lines. Biosynthesized ternary hetero-structures were used as red fluorescent dyes to label HeLa cells in confocal microscopy studies, which validates its use in bioimaging applications in the near infrared region. In addition, the application of biologically-produced cadmium NPs in solar cells is reported for the first time. The three biosynthesized QDs were successfully used as photosensitizers, where the CdSAg QDs show the best photovoltaic parameters. Altogether, obtained results validate the use of bacterial cells for the controlled production of nanomaterials with properties that allow their application in diverse technologies. We developed a simple biological process for obtaining tunable Quantum Dots (QDs) with different metal compositions through a cation exchange process. Nanoparticles (NPs) are produced in the extracellular space of bacterial cells exposed to cysteine and CdCl2 in a reaction that depends on S2− generation mediated by cysteine desulfhydrase enzymes and uses cellular biomolecules to stabilize the nanoparticle. Using this extracellular approach, water-soluble fluorescent CdS, CdSAg, and Ag2S Quantum Dots with a tunable emission ranging from 400 to 800 nm were generated. This is the first study reporting the use of microorganisms to produce tunable ternary QDs and the first time that a cation exchange process mediated by cells is described. Obtained results validate the use of biological synthesis to produce NPs with new characteristics and opens a completely new research field related to the use of microorganisms to synthesize complex NPs that are difficult to obtain with regular chemical methods.

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“…After the determination of phases, Miller's indexes were determined by comparison with JCPDS standards, thus concluding that the deposited film has preferential orientation and growth in the plan (111). The other plans (200) and (311) were also observed in the literature 11 and correspond to the cubic phase of the CdS. The X-ray diffraction serves as a system for identifying materials, because each atomic set has crystallographic characteristics that are unique, so we can state that the synthesized material is indeed the one planned 12 .…”

Section: Resultsmentioning

confidence: 66%

“…In Figure 2 the presence of CdS and FTO peaks were observed, according to the JOINT COMMITTEE FOR POWDER DIFFREACTION STANDARDS database (JCPDS-10-0454 for CdS and JCPDS-77-450 for FTO) 11 . After the determination of phases, Miller's indexes were determined by comparison with JCPDS standards, thus concluding that the deposited film has preferential orientation and growth in the plan (111).…”

Section: Resultsmentioning

confidence: 99%

Pani Addition to Improve Contact Between CdTe/CdS Semiconductors

et al. 2021

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This paper presents the study of the addition of the polyaniline polymer (PANI), at the junction of the cadmium telluride and cadmium sulfide (CdTe/CdS) layers in order to improve the contact between the layers, to decrease the air gap that limit the conversion photovoltaic. The morphology of CdS, CdTe and polyaniline (PANI) were characterized with multiple techniques including scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and optical absorption. The Metrohm Autolab LED Driver Kit system was used for data collection, and it was possible to obtain the current and voltage parameters of the cells. The inclusion of PANI thin film in CdS/CdTe hybrid solar cells increases the energy conversion efficiency from 0.0075% to 0.15%, this gives a 20-fold increase in efficiency.

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Deposition and Characterization of CdS Nano Thin Film with Complexing Agent Triethanolamine

Cited by 30 publications

References 27 publications

Effect of Triton X-100 surfactant on thiol-amine cosolvents assisted facile synthesized CdS thin films on glass substrate by spin coating method

Effect of Triton X-100 surfactant on thiol-amine cosolvents assisted facile synthesized CdS thin films on glass substrate by spin coating method

Bacterial Synthesis of Ternary CdSAg Quantum Dots through Cation Exchange: Tuning the Composition and Properties of Biological Nanoparticles for Bioimaging and Photovoltaic Applications

Pani Addition to Improve Contact Between CdTe/CdS Semiconductors

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